Yadav, J. S. ; Subba Reddy, B. V. ; Jain, Ruchi ; Suresh Reddy, Ch. (2007) Dy(OTf)3 as a versatile catalyst for the synthesis of 3-pyrrolyl-indolinones and pyrrolyl-indeno[1,2-b]quinoxalines Tetrahedron Letters, 48 (18). pp. 3295-3298. ISSN 0040-4039
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.tetlet.2007.02.134
Abstract
Dysprosium(III) triflate is found to catalyze efficiently the coupling of 4-hydroxyproline with indeno[1,2-b]quinoxalin-11-one and isatin derivatives under mild conditions to produce 11-(1H-pyrrol-1-yl)-11H-indeno[1,2-b]quinoxalin-11-one and 3-(1H-pyrrol-1-yl)indolin-2-one derivatives, respectively, in excellent yields in short reaction times. A comparative study with both InCl3 and Dy(OTf)3 is described.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Pyrrole; Isatins; Lanthanide Triflate; Indolinone; Quinoxaline |
| ID Code: | 58899 |
| Deposited On: | 02 Sep 2011 03:26 |
| Last Modified: | 02 Sep 2011 03:26 |
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